Navigation Links
Researchers engineer new polymers to change their stiffness and strength when exposed to liquids
Date:3/6/2008

ir skin. Normally it is very soft, but, for example, in response to a threat, the animal can activate its 'body armor' by hardening its skin," explains Capadona, who has a sea cucumber in his aquarium. Marine biologists have shown in earlier studies that the switching effect in the biological tissue is derived from a distinct nanocomposite structure in which highly rigid collagen nanofibers are embedded in a soft connective tissue. The stiffness is mediated by specific chemicals that are secreted by the animal's nervous system and which control the interactions among the collagen nanofibers. When connected, the nanofibers form a reinforcing network which increases the overall stiffness of the material considerably, when compared to the disconnected (soft) state.

Building on their recent success on the fabrication of artificial polymer nanocomposites containing rigid cellulose nanofibers, which earned them the December 2007 cover of Nature Nanotechnology, the team mimicked the architecture nature 'designed' for the sea cucumbers and created artificial materials that display similar mechanical morphing characteristics.

The Case Western Reserve/VA team is specifically interested in using such dynamic mechanical materials in biomedical applications, for example as adaptive substrates for intracortical microelectrodes. These devices are being developed as part of 'artificial nervous systems' that have the potential to help treat patients that suffer from medical conditions such as Parkinson's disease, stroke or spinal cord injuries, i.e., disorders in which the body's interface to the brain is compromised. A problem observed in experimental studies is that the quality of the brain signals recorded by such microelectrodes usually degrades within a few months after implantation, making chronic applications challenging. One hypothesis for this failure is that the high stiffness of these electrodes, which is required for their insertion, causes damage to the surround
'/>"/>

Contact: Laura M. Massie
laura.massie@case.edu
216-368-4442
Case Western Reserve University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Researchers improve ability to write and store information on electronic devices
2. Long-awaited international ethical guidelines for biobank researchers
3. CU researchers shed light on light-emitting nanodevice
4. Stevens researchers provide new information about mass spectrometry
5. Researchers measure carbon nanotube interaction
6. Researchers underscore limitations of genetic ancestry tests
7. ASU researchers improve memory devices using nanotech
8. UD researchers race ahead with latest spintronics achievement
9. Researchers outline structure of largest nonvirus particle ever crystallized
10. Ames Laboratory researchers solve fuel-cell membrane structure conundrum
11. Researchers use magnetism to target cells to animal arteries
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers engineer new polymers to change their stiffness and strength when exposed to liquids
(Date:1/22/2015)... January 22, 2015 Eckert & Ziegler ... Spectrometry (AMS) services to the pharmaceutical and biotech industry, ... the company in the position of Director of Science ... broad and valuable experience in drug metabolism and bioanalysis ...
(Date:1/22/2015)... GEA Niro Soavi the leader in ... the PandaPLUS 2000, which is ideal for new applications ... cell disruption . This compact laboratory homogenizer is the ... food, food additives and ingredients as well as for ...
(Date:1/22/2015)... The laboratory information management systems market is a ... technological advancements due to factors such as rising pressure ... healthcare systems, and increasing government support for adoption of ... players in the market focus on technological advancements to ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Pipette.com has ... to their comprehensive portfolio of Eppendorf products. , ... to purchase a Centrifuge 5424/5424 R and receive the ... either Eppendorf Research plus or Eppendorf Reference 2 ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2
... HEIGHTS, N.J., Feb. 16, 2011 Zymes LLC is ... two-year $476,000 grant from the Michael J. Fox Foundation,s ... titled, "Evaluation of the Neuroprotectivity Ability of Zymes, ... disease): Preclinical Validation and Dose Optimizations for Clinical Study" ...
... Pa., Feb. 16, 2011 Tengion, Inc. (Nasdaq: ... it has been engaged in negotiations with a publicly traded ... merger.  As a result of the recent increases in the ... acquirer has terminated merger negotiations. As has ...
... An important milestone toward the realization of a large-scale quantum ... quantum control of light, were accomplished by a team of ... The study, published in the Feb. 7 issue of ... Zhejiang University, China, and NEC Corporation, Japan. The experimental effort ...
Cached Biology Technology:Michael J. Fox Foundation Awards Grant to Zymes LLC 2Tengion Addresses Recent Trading Activity in its Common Stock 2International team of scientists says it's high 'NOON' for microwave photons 2
(Date:12/19/2014)... Dec. 18, 2014 Research and Markets ( ... "iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire ... http://photos.prnewswire.com/prnh/20130307/600769 Following ... the fingerprint reading feature with the iPhone 5S. It ...
(Date:12/17/2014)... BELVOIR, Va. , Dec. 15, 2014 The ... it easier to detect and prevent counterfeit microcircuits from ... agency started performing an in-house microcircuit anti-counterfeit initiative dubbed ... purchased microcircuits while increasing their reliability throughout the supply ...
(Date:12/15/2014)... , Dec. 12, 2014 Research and Markets ... "Global Facial Recognition Market 2015-2019" report to ... Facial recognition is a technology used for ... overall facial feature of a person such as nose, ...
Breaking Biology News(10 mins):iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... Penn State food scientists have shown that the amount ... the toasty aroma developed by oats and might be ... products. , Polyphenols are a large family of naturally ... wide variety of health benefits. Flavonoids and some ...
... that controls plant growth may help explain why human ... of scientists. , ,Researchers from Purdue University and ... time that proteins similar to multi-drug resistant proteins in ... Purdue plant cell biologist Angus Murphy. Because plant proteins ...
... Medicine report in a new study that they have identified ... the fatty insulation around nerve cells that ensures swift and ... the September 1, 2005, issue of the journal Neuron, may ... as multiple sclerosis, which are associated with damage to myelin. ...
Cached Biology News:Toasty oat aroma influenced by presence of health-linked polyphenols 2Toasty oat aroma influenced by presence of health-linked polyphenols 3Plant gene related to cancer treatment may foster new oncology drugs 2Plant gene related to cancer treatment may foster new oncology drugs 3Scientists discover the molecular switch for nerve cells' insulating jelly rolls 2
... Agarose-HR High Resolution - ... from 50 to 1000 ... for sizing PCR fragments, ... by restriction enzyme digestion, ...
... Clone/PAD: ZMD.358. Immunogen: Synthetic ... region of human mouse and ... with human and mouse LRP5 ... (positive controls: mouse LRP5-pSEC-tag-transfected 293T ...
Replacement Parts for Electrophoresis Apparatus...
...
Biology Products: